Texture shows in render preview but not in Render
I am reasonably sure, that the wooden "table" is set to not visible in the final render. In the Object outliner scroll down and  check if the camera symbol for "restrict rendering" (rightmost symbol in the outliner) is checked/unchecked on the object with the wooden texture.

check in the wiki page under "Toggling object-level restrictions" 

https://en.blender.org/index.php/Doc:2.6/Manual/Data_System/The_Outliner

Also check

Why does my object not show up?

Render result is completely blank?